Evaluation of the performance of a lead-free piezoelectric material for energy harvesting

Vibration-based energy harvesting has been explored as an auxiliary power source, which can provide small amounts of energy to power remote sensors installed in inaccessible locations. This paper presents an experimental and analytical study of an energy harvesting device using a lead-free piezoelec...

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Bibliographic Details
Published inSmart materials and structures Vol. 24; no. 11; pp. 115011 - 115018
Main Authors Machado, S P, Febbo, M, Rubio-Marcos, F, Ramajo, L A, Castro, M S
Format Journal Article
LanguageEnglish
Published IOP Publishing 01.11.2015
Subjects
energy harvesting
lead-free piezoelectric
vibration
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Summary:Vibration-based energy harvesting has been explored as an auxiliary power source, which can provide small amounts of energy to power remote sensors installed in inaccessible locations. This paper presents an experimental and analytical study of an energy harvesting device using a lead-free piezoelectric material based on -doped ( )( ) KNL-(NTS)Mo. The harvesting model corresponds to a cantilever beam with a KNL-(NTS)Mo piezoelectric disc attached to it. We analyze the effect of electromechanical coupling and load resistance on the generated electrical power. Electromechanical frequency response functions that relate the voltage output to the translational base acceleration are shown for experimental and analytical results.
ISSN:0964-1726
1361-665X
DOI:10.1088/0964-1726/24/11/115011